2005 Pontiac Grand Prix Q&A

2005 Pontiac Grand Prix Question: What is wrong then the car jumps or feels as though it is skipping gears?

There are not any codes. -
Answer 1
Engine misfire, need a tune up! -
Answer 2
From the frequently reports problems page: 20 reports of Erratic Shifting of the Automatic Transmission Verified The transmission pressure control solenoid may fail causing erratic shifting. Our technicians tell us that partial dis-assembly of the transmission is necessary to replace a failed pressure control solenoid. -